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Item # 660065 | Customer Ratings: Ratings ( 5 Based on 3 reviews)

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Eminence Commonwealth 12" 225W Guitar Speaker
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      Eminence Commonwealth 12" 225W Guitar Speaker (660065)
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The Eminence Commonwealth 12" Guitar Speaker delivers warm and rich tone that is very clean and well-defined. This Eminence speaker has a very full and smooth presence. Very little cone break-up, but likes Overdrive. Clean, warm, full, non-distorted, unadulterated guitar tone for all genres.

Eminence Commonwealth 12" 225W Guitar Speaker Features:

  • Voice Coil Diameter: 4", 101.6mm
    Magnet Weight: 109 oz.
    Power Rating.: 225W
    Sensitivity: 100


Eminence Commonwealth 12" 225W Guitar Speaker Specifications:

  • Specification
    Nominal Basket Diameter: 12", 304.8mm
    Nominal Impedance*: 8 ohms
    Power Rating**: 225W
    Resonance: 50Hz
    Usable Frequency Range: 50Hz-4kHz
    Sensitivity***: 100
    Magnet Weight: 109 oz.
    Gap Height: 0.29", 7.2mm
    Voice Coil Diameter: 4", 101.6mm

    Thiele & Small Parameters
    Resonant Frequency (fs): 50Hz
    DC Resistance (Re): 6.34
    Coil Inductance (Le): 0.46mH
    Mechanical Q (Qms): 6.61
    Electromagnetic Q (Qes): 0.35
    Total Q (Qts): 0.33
    Compliance Equivalent Volume (Vas): 90 liters / 3.2 cu. ft.
    Peak Diaphragm Displacement Volume (Vd): 36cc
    Mechanical Compliance of Suspension (Cms): 0.24mm/N
    BL Product (BL): 15.7 T-M
    Diaphragm Mass inc. Airload (Mms): 43 grams
    Efficiency Bandwidth Product (EBP): 143
    Maximum Linear Excursion (Xmax): 0.7mm
    Surface Area of Cone (Sd): 519.5 cm2

    Mounting Information
    Recommended Enclosure Volume:
    Sealed: Acceptable
    Vented: Acceptable
    Overall Diameter: 12.28", 312.0mm
    Baffle Hole Diameter: 11.08", 281.3mm
    Front Sealing Gasket: fitted as standard
    Rear Sealing Gasket:
    Mounting Holes Diameter: 0.27", 6.8mm
    Mounting Holes B.C.D.: 11.69", 297.0mm
    Depth: 5", 127mm
    Net Weight: 21.5 lbs., 9.8 kg
    Shipping Weight: 23.2 lbs., 10.5 kg

    Materials of Construction
    Aluminum voice coil
    Polyimide former
    Ferrite magnet
    Vented core
    Die-cast aluminum basket
    Paper Cone
    Cloth cone edge
    Aluminum dust cap

    *Please inquire about alternative impedances.
    **Multiple units exceed published rating evaluated under EIA 426A noise source and test standard while in a free-air, non-temperature controlled environment.
    ***The average output across the usable frequency range when applying 1W/1M into the nominal impedance. Ie: 2.83V/8ohms, 4V/16ohms.
    Eminence response curves are measured under the following conditions: All speakers are tested at 1w/1m using a variety of test set-ups for the appropriate impedance " LMS using 0.25" supplied microphone (software
    calibrated) mounted 1m from wall/baffle " 2ft. X 2ft. baffle is built into the wall with the speaker mounted flush against a steel ring for minimum diffraction " Hafler P1500 Trans-Nova amplifier " 2700 cu.ft. chamber with
    fiberglass on all six surfaces (three with custom-made wedges)



Eminence Commonwealth 12" 225W Guitar Speaker

7 year parts and labor warranty against defects on all speakers sold under Eminence name.

Get your gear covered!

Now you can get added warranty protection for your new gear. Pro Coverage steps in where the manufacturer's "normal wear and tear" ends. Our PRO COVERAGE program offers you UPGRADED COVERAGE if your product ever fails!

Pro Coverage includes:

  • Accidental damage protection (new gear only)
  • Expedited Repair
  • Free Shipping (for returns or repairs)
  • 100% Coverage for Commercial Use
  • Extended Return Period
  • Extended Price Protection
  • No Lemon Guarantee
  • Free Transfer of Coverage to a new owner
  • Repair Costs Covered for up to 3 years from date of purchase
  • Repairs Can Be Authorized Toll-Free by Phone or the via the web
Product Reviews
(Based on 3 reviews)
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Viewing Reviews 1 - 3 of 3 |
  • Commonwealth 12 or JBL E-120?

    As reviewed by Jboy on 3/22/2010

    I was making my own Baltic Birch Cab like a Hard Truckers, and was looking for that JBL E-120 sound. This speaker delivers the goods with high sensitivity, Clear tone, no breakup, and High RMS wattage. Makes my Fender 65'Twin Reverb sing Like Jerry Garcia's. People often ask me if they are JBL E-120's, they are identical in looks and in TONE. You wont be sorry, don't bother to re-cone some 30 year old speaker with lower sensitivity and unknown outcomes. This does the job perfectly, and for less money. They are LOUD and you will NEVER BLOW THEM.

    12 of 13 people found this review helpful.
    Was this review helpful?
  • Commonwealths are the best!

    As reviewed by BestFather on 2/10/2011

    My daughter and I built a 2 x 12 guitar cabinet using birch plywood (excellent cabinet work with a mandarin orange water based stain finish - superb!). We evaluated many speakers and chose the commonwealths over everything; even JBL and higher priced Celestions. We made the right choice. Very high power handling, excellent tonal range and they are beautiful. They are very heavy though, so make sure your cabinet is sturdy. We will build another cabinet in 3 weeks. We will use either two more commonwealths or the eminence BassLite CA2010. Yes, bass speakers for a guitar cabinet. These two speakers are the best kept secret out there.

    2 of 3 people found this review helpful.
    Was this review helpful?
  • Beautiful tone

    As reviewed by DENNIS ROE on 3/8/2014

    After being dissatisfied and unable to get the tone I wanted, I bought a pair of these to put in my Marshall 1960 cab. I removed two of the Celestion G12T-75's, and installed these in a X pattern. After breaking them for 2 hours face down, with some modulating sine waves, I plugged in my Les Paul. The depth, and musicality that I was reaching for was at last within my reach. I played all my guitars, with the variety of different pickups, and was stunned. So please, do not buy these. I don't want to share my tone with anybody.

    1 of 2 people found this review helpful.
    Was this review helpful?
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